ENFOPOL 98, Rev 1

Seite 3: Part 1: Explanation of Requirements

Der folgende Beitrag ist vor 2021 erschienen. Unsere Redaktion hat seither ein neues Leitbild und redaktionelle Standards. Weitere Informationen finden Sie hier.

(The normal text correspondence to the requirements. The bold text are explanations)

Note: The Internet requires specific explanations.

  • 1. Law enforcement agencies require access to the entire telecommunications transmitted, or caused to be transmitted, to and from the number or other identifier of the target service used by the interception subject. Law enforcement agencies also require access to the call-associated data that are generated to process the call.
  • 1.1 Law enforcement agencies require access to all interception subjects operating temporarily or permanently within a telecommunications system.
  • 1.2 Law enforcement agencies require access in cases where the interception subject may be using features to divert calls to other telecommunications services or terminal equipment, including calls that traverse more than one network operator/service provider before completing.
  • 1.3 Law enforcement agencies require that the telecommunications to and from a target service be provided to the exclusion of any telecommunications that do not fall within the scope of the interception authorization.
  • 1.4 Law enforcement agencies require access to call associated data such as:
  • 1.4.1 Signalling of access ready status.
  • 1.4.2 Called party number for outgoing connections even if there is no successful connection estableshed. Note: Called party number includes any identifier of the called party.
  • 1.4.3 Calling party number for incoming connections even if there is no successful connection established. Note: Calling party number includes any identifier of the calling party.
  • 1.4.4 All signals emitted by the arget, including post-connection dialled signals emitted to activate features such as conference calling and transfer.
  • 1.4.5 Beginning, end and duration of the connection.
  • 1.4.6 Actual destination and intermediate directory numbers if call has been diverted.
  • 1.5 Law enforcement agencies require information on the most accurate geographical location known to the network for mobile subscribers.
  • 1.6 Law enforcement agencies require data on the specific services used by the interception subject and the technical parameters for those types of communication.
  • 2. Law enforcement agencies require a real-time, full-time monitoring capability for the interception of telecommunications. Call associated data should also be provided in real-time. If call associated data cannot be made available in real time, law enforcement agencies require the data to be available as soon as possible upon call termination. Note: In this conntext and in relation to call associated data is required within a few seconds.
  • 3. Law enforcement agencies require network operators/service providers to provide one or several interfaces from which the intercepted communications can be transmitted to the law enforcement monitoring facility. These interfaces have to be commonly agreed on by the interception authorities and the network operators/service providers. Other issues associated with these interfaces will be handled according to accepted practices in individual countries.
  • 3.1 Law enforcement agencies require network operators/service providers to provide call associated data and call content from the target service in a way that allows for the accurate correlation of all associated data with call content.
  • 3.2 Law enforcement agencies require that the format for transmitting the intercepted communications to the monitoring facility be a generally available format. This format will be agreed upon on an individual country basis.
  • 3.3 If network operators/service providers initiate encoding, compression or encryption of telecommunications traffic, law enforcement agencies require the network operators/ service providers to provide intercepted commuications en clair.
  • 3.4 Law enforcement agencies require network operators/ service providers to be able to transmit the intercepted communications to the law enforcement monitoring facility via fixed or switched connections. Note: Switched connections includes all types of switched connections including circuit-switched and packet-swiched connections. IP connections are not excluded.
  • 3.5 Law enforcement agencies require that the transmission of the intercepted communications to the monitoring facility meet applicable security requirements. Note: Further security requirements are detailed in the attached paper.
  • 4. Law enforcement agencies require interceptions to be implemented so that neither the interception target nor any other unauthotized person is aware of any changes made to fulfil the interception order. In particular, the operation of the target service must appear unchanged to the interception subject.
  • 5. Law enforcement agencies require the interception to be designed and implemented to preclude unauthorized or improper use and to safeguard the information related to the interception. Note: Further security requirements are detailed in the attached paper.
  • 5.1 Law enforcement agencies require network operators/service providers to protect information on which and how many interceptions are being or have been performed, and disclose information on how interceptions are carried out.
  • 5.1 Law enforcement agencies require network operators/service providers to ensure that intercepted communications are only transmitted to the monitoring agency specified in the interception authorization.
  • 5.1 According to national regulations, network operators/service providers could be obliged to maintain an adequately protected record of activations of interceptions.
  • 6. Based on a lawful enquiry and before implementation of the interception, law enforcement agencies require: (1) the interception subject's identity, service number or other distinctive identifier, (2) information on the services and features of the telecommuications system used by the interception subject and delivered by network operators/ service providers, and (3) information on the technical parameters of the transmission to the law enforcement monitoring facility. Note: Further subscriber-related data requirements are detailed in the attached paper.
  • 7. During the interception, law enforcement agencies may require information and/or assistance from the network operators/service providers to encsure that the communications acquired at the interception interface are those communications associated with the target service. The type of information and/or assistance required will vary according to the accepted practices in individual countries. Note: Further exlanation concerning number portability is detailed in the attached paper.
  • 8. Law enforcement agencies require network operators/service providers to make provisions for implementing a number of simultaneous intercepts. Multiple interceptions may be required for a single target service to allow monitoring by more that one law enforcement agency. In this case, network operators/service providers should take precautions to safeguard the identifies of the monotoring agencies and confidentialty of the investigations. The maximum number of simultaneous interceptins for a given subsciber population will be in accordance with national requirements. Note: For international systems the maximum number of simultaneaus interceptions needs to be derived from combining national requirements.
  • 9. Law enforcement agencies require network operators/service providers to implement interceptions as quickly as possible (in urgent cases within a few hours or minutes). The response requirements of law enforcement agencies will vary by country and by the type of target service to be intercepted.
  • 10. For the duration of the interception, law enforcement agencies require that the reliability of the services supporting the interception at least equals the reliability of the target services provided to the interception subject. Law enforcement agencies require the quality of service of the intercepted transmissions forwarded to the monitoring facility to comply with the performance standards of the network operators/service providers.